This new teaching approach is specially ______ to develop children’s problem-solving skills.
—My sister is very upset today. —It’s your fault .You the bad news to her yesterday.
After series of unsuccessful attempts, he has finally passed driving test.
In the face of danger, we need to stay ____. Only in this way can we come up with good solutions.
Yesterday we went to visit the farm ____ my father used to work for nearly ten years.
Every minute must be made full use of ____ our lessons, for the final examination is coming.